What organ is on the left side of the heart

Many people don't know much about the internal structure of their own heart. In fact, the heart is one of the most important organs in the human body. If there is a problem with the heart, it will not only threaten the patient's life, but will also directly prevent the patient from living a normal life. It will be very painful every time the disease occurs. Therefore, if you often feel pain on the left side of your heart, you should go for a specific examination.

The heart is the most important organ in the vertebrate body. Its main function is to provide pressure for blood flow and circulate blood to all parts of the body. The human heart is located in the lower left middle of the chest cavity. It is about the size of a fist and weighs about 250 grams. Women's hearts are generally smaller and lighter than men's. The human heart is shaped like a peach and is located above the diaphragm, between the two lungs and slightly to the left.

The heart is composed of myocardium and four chambers: left atrium, left ventricle, right atrium, and right ventricle.

The left and right atria and the left and right ventricles are separated by septa, so they are not connected to each other. There are valves (atrioventricular valves) between the atria and ventricles. These valves prevent blood from flowing from the atria to the ventricles and not flowing back.

The function of the heart is to promote blood flow, provide sufficient blood flow to organs and tissues to supply oxygen and various nutrients, and take away the end products of metabolism (such as carbon dioxide, inorganic salts, urea and uric acid, etc.) so that cells maintain normal metabolism and function.

The heart is located in the chest cavity, above the diaphragm, between the two lungs, and about two-thirds to the left of the midline. The heart is like an inverted, slightly flattened cone at the front and back, like a peach. The apex of the heart is blunt and round, facing the left front and lower side, close to the anterior chest wall. Its surface projection is 1-2 cm inside the midclavicular line in the fifth intercostal space of the left anterior chest wall, so the apex beat can be seen or felt here. The base of the heart is wide, with large blood vessels entering and exiting it, heading towards the upper right posterior side, adjacent to the esophagus and other organs in the posterior mediastinum.

The heart is shaped like a peach. It is about the same size as an adult's fist and is approximately an inverted cone that is slightly flattened front to back, with its tip pointing to the lower left front and its base pointing to the upper right rear. The shape of the heart can be divided into the front, back, side, left edge, right edge and lower edge (ie: one tip, one bottom, three sides and three edges).